Switching to Solr - Watch out!

I can bet that during switching from Lucene to Solr indexes you are using scripts to disable Lucene configs and enable Solr configs.

Am I right?

If yes, please be aware, because since Sitecore 8.2 we have additional config file related to Solr, it is called "Sitecore.ContentSearch.SolrCloud.SwitchOnRebuild.config" and your scripts can accidentally enable this config file on your environment, which is unnecessary for you until you don't use Solr Cloud.

During rebuilding my primary indexes, I was facing with HTTP ERROR 404 issues:

• Problem accessing /solr/sitecore_master_index_rebuild/update
• Problem accessing /solr/sitecore_web_index_rebuild/update
• Problem accessing /solr/sitecore_core_index_rebuild/update

First strange thing which I saw, was the akward names of indexes. I've never seen "rebuild" in names of indexes, it was weird for me...

Solution

If you are facing with similar issue, please try disable Sitecore.ContentSearch.SolrCloud.SwitchOnRebuild.config. It helped for me and I hope that it will help for you!